GB1226902A - - Google Patents

Info

Publication number
GB1226902A
GB1226902A GB1226902DA GB1226902A GB 1226902 A GB1226902 A GB 1226902A GB 1226902D A GB1226902D A GB 1226902DA GB 1226902 A GB1226902 A GB 1226902A
Authority
GB
United Kingdom
Prior art keywords
curing
acid
april
aromatic ring
parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CH617368A external-priority patent/CH491158A/en
Application filed filed Critical
Publication of GB1226902A publication Critical patent/GB1226902A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/32—Compounds containing nitrogen bound to oxygen

Abstract

1,226,902. Curing epoxy resins. HENKEL & CIE G.m.b.H. 24 April, 1969[25 April, 1968; 1 Feb., 1969], No. 20889/69. Heading C3B. The curing of epoxy resins by polycarboxylic acid anhydrides is retarded by addition of an acid phenol substituted in the aromatic ring, or in at least one aromatic ring if more than one are present, by at least two nitro groups. The retarder may be present at 0À001 to 3 parts by wt. per 100 parts of epoxy resin. Examples relate to the curing of triglycidyl isocyanurate, a diglycidyl ester of hexahydrophthalic anhydride and a diglycidyl ether of bisphenol A with hexahydrophthalic anhydride using as retarders, picric acid, 2,4- and 2,6-dinitrophenol and 3,5-dinitrosalicylic acid.
GB1226902D 1968-04-25 1969-04-24 Expired GB1226902A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH617368A CH491158A (en) 1968-04-25 1968-04-25 Use of picric acid as a retarder for epoxy resins
DE19691904935 DE1904935A1 (en) 1968-04-25 1969-02-01 Epoxy compsns. with extended pot life comprising (a) polyepoxy cpds. (b) anhydrides of polybasic carboxylic acids and (c) 0.001-3% (on a) of an acid phenol cont

Publications (1)

Publication Number Publication Date
GB1226902A true GB1226902A (en) 1971-03-31

Family

ID=25699109

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1226902D Expired GB1226902A (en) 1968-04-25 1969-04-24

Country Status (4)

Country Link
US (1) US3597411A (en)
FR (1) FR2006908A1 (en)
GB (1) GB1226902A (en)
NL (1) NL6904871A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919348A (en) * 1974-05-23 1975-11-11 Westinghouse Electric Corp Epoxy-styrene resin system having improved shelf life
EP0065020B1 (en) * 1981-05-15 1986-03-05 Dow Chemical Rheinwerk GmbH Stabilized thermosettable ethylenically unsaturated epoxy ester resin compositions
TW200923006A (en) * 2007-07-11 2009-06-01 Nissan Chemical Ind Ltd Liquid epoxy resin forming formulation containing inorganic particles

Also Published As

Publication number Publication date
NL6904871A (en) 1969-10-28
FR2006908A1 (en) 1970-01-02
US3597411A (en) 1971-08-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees